# Chord Spell vs RCM Theory Practice

The clearest difference is in-app purchases: Chord Spell at none against RCM Theory Practice's 3. Chord Spell also leads on update cadence (weekly vs monthly). RCM Theory Practice's advantage is ads (none vs shown) and iOS requirement (13.0 vs 17). On price and device support there is nothing between them.

Both are free to download. RCM Theory Practice sells 3 in-app purchases, starting at $2.99 per month. Chord Spell asks for nothing beyond the download.

Chord Spell ships an update weekly, RCM Theory Practice monthly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Chord Spell | RCM Theory Practice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chord-spell/id6759431250/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Monthly |
| Monetization | Ad-supported | — |
| Size | 14 MB | 104 MB |
| Requires iOS | 17 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Haiyi Mei](https://appshunter.io/developer/1878580278) | [FLY SKY PTY LTD](https://appshunter.io/developer/1838696534) |

## What reviewers say

### Chord Spell

[App page](https://appshunter.io/ios/app/chord-spell/id6759431250)

Learn piano chords by spelling them out on a virtual keyboard. Get instant feedback on your accuracy and hear the chords played back. Practice daily with customizable chord types and track your progress.

**Highlights:** Spell chords on a virtual piano, Instant feedback on accuracy, Hear chords played back, Supports major, minor, and extended chords, Customizable chord types, Tracks and drills mistakes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### RCM Theory Practice

[App page](https://appshunter.io/ios/app/rcm-theory-practice/id6775681343)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $2.99 | per month |
| Yearly Pro | $9.99 | per year |
| Lifetime Pro | $39.99 | one-time |


## Frequently asked questions

### Is Chord Spell free?

Chord Spell is free to download, with no in-app purchases.

### Is RCM Theory Practice free?

RCM Theory Practice is free to download, with in-app purchases available.

### Do Chord Spell or RCM Theory Practice have ads?

Chord Spell shows ads; RCM Theory Practice does not.

### Which is updated more often, Chord Spell or RCM Theory Practice?

Chord Spell ships an update weekly, and RCM Theory Practice monthly. Most recently, Chord Spell was updated on October 31, 2026 and RCM Theory Practice on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*